- doc typo fix

 - bugfix: proper error reporting in s6_fdholder_list_cb

2 files changed, 3 insertions, 2 deletions

diff --git a/doc/upgrade.html b/doc/upgrade.html
index 20079d3..683bba2 100644
--- a/doc/upgrade.html
+++ b/doc/upgrade.html
@@ -146,7 +146,7 @@ waiting has changed. </li>
 of <tt>notification-fd</tt> before accepting a <tt>U</tt> command. </li>
  <li> New <tt>-X</tt> option to <a href="s6-svc.html">s6-svc</a>. </li>
  <li> Different meaning of SIGQUIT for
-<a href="s6-supervise">s6-supervise</a>: now the same as
+<a href="s6-supervise.html">s6-supervise</a>: now the same as
 <tt>s6-svc -X</tt>. </li>
 </ul>
 
diff --git a/src/libs6/s6_fdholder_list_cb.c b/src/libs6/s6_fdholder_list_cb.c
index d465004..59d01a5 100644
--- a/src/libs6/s6_fdholder_list_cb.c
+++ b/src/libs6/s6_fdholder_list_cb.c
@@ -13,12 +13,13 @@ int s6_fdholder_list_cb (unixmessage_t const *m, void *p)
   uint32 n ;
   register s6_fdholder_list_result_t *res = p ;
   if (m->nfds) goto droperr ;
-  if (m->len < 5) goto err ;
+  if (!m->len) goto err ;
   if (m->s[0])
   {
     res->err = m->s[0] ;
     return 1 ;
   }
+  if (m->len < 5) goto err ;
   uint32_unpack_big(m->s + 1, &n) ;
   if (byte_count(m->s + 5, m->len - 5, 0) != n) goto err ;
   if (!stralloc_catb(res->sa, m->s + 5, m->len - 5)) return 0 ;